2004-08-15 16:29:04 +00:00
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# This file is part of lyx2lyx
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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2002-2004 Dekel Tsur <dekel@lyx.org>, Jos<6F> Matos <jamatos@lyx.org>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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from parser_tools import get_value, check_token, find_token
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import os.path
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import gzip
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import sys
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import re
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import string
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##
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# file format version
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#
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version = "1.4.0cvs"
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default_debug_level = 2
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format_re = re.compile(r"(\d)[\.,]?(\d\d)")
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fileformat = re.compile(r"\\lyxformat\s*(\S*)")
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original_version = re.compile(r"\#LyX (\S*)")
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lst_ft = [210, 215, 216, 217, 218, 220, 221, 223, 224, 225, 226, 227, 228, 229,
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230, 231, 232, 233, 234, 235, 236]
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format_relation = [("0_10", [210], ["0.10.7","0.10"]),
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("0_12", [215], ["0.12","0.12.1","0.12"]),
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("1_0_0", [215], ["1.0.0","1.0"]),
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("1_0_1", [215], ["1.0.1","1.0.2","1.0.3","1.0.4", "1.1.2","1.1"]),
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("1_1_4", [215], ["1.1.4","1.1"]),
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("1_1_5", [216], ["1.1.5","1.1.5fix1","1.1.5fix2","1.1"]),
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("1_1_6", [217], ["1.1.6","1.1.6fix1","1.1.6fix2","1.1"]),
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("1_1_6fix3", [218], ["1.1.6fix3","1.1.6fix4","1.1"]),
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("1_2", [220], ["1.2.0","1.2.1","1.2.3","1.2.4","1.2"]),
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("1_3", [221], ["1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3"]),
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("1_4", [223,224,225,226,227,228,229,230,231,232,233,234,235, 236], ["1.4.0cvs","1.4"])]
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def get_end_format():
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2004-09-29 16:34:27 +00:00
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return format_relation[-1][1][-1]
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2004-08-15 16:29:04 +00:00
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def get_backend(textclass):
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if textclass == "linuxdoc" or textclass == "manpage":
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return "linuxdoc"
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if textclass[:7] == "docbook":
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return "docbook"
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return "latex"
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##
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# Class
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#
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class FileInfo:
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"""This class carries all the information of the LyX file."""
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def __init__(self, end_format = 0, input = "", output = "", error = "", debug = default_debug_level):
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if input:
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self.input = self.open(input)
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else:
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self.input = sys.stdin
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if output:
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self.output = open(output, "w")
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else:
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self.output = sys.stdout
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if error:
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self.err = open(error, "w")
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else:
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self.err = sys.stderr
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self.debug = debug
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if end_format:
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self.end_format = self.lyxformat(end_format)
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else:
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self.end_format = get_end_format()
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self.backend = "latex"
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self.textclass = "article"
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self.header = []
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self.body = []
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self.read()
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def warning(self, message, debug_level= default_debug_level):
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if debug_level <= self.debug:
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self.err.write(message + "\n")
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def error(self, message):
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self.warning(message)
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self.warning("Quiting.")
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sys.exit(1)
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def read(self):
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"""Reads a file into the self.header and self.body parts"""
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preamble = 0
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while 1:
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line = self.input.readline()
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if not line:
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self.error("Invalid LyX file.")
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line = line[:-1]
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# remove '\r' from line's end, if present
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if line[-1:] == '\r':
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line = line[:-1]
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if check_token(line, '\\begin_preamble'):
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preamble = 1
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if check_token(line, '\\end_preamble'):
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preamble = 0
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if not preamble:
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line = string.strip(line)
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if not line and not preamble:
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break
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self.header.append(line)
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while 1:
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line = self.input.readline()
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if not line:
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break
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# remove '\r' from line's end, if present
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if line[-2:-1] == '\r':
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self.body.append(line[:-2])
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else:
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self.body.append(line[:-1])
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self.textclass = get_value(self.header, "\\textclass", 0)
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self.backend = get_backend(self.textclass)
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self.format = self.read_format()
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self.language = get_value(self.header, "\\language", 0)
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if self.language == "":
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self.language = "english"
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self.initial_version = self.read_version()
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def write(self):
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self.set_version()
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self.set_format()
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for line in self.header:
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self.output.write(line+"\n")
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self.output.write("\n")
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for line in self.body:
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self.output.write(line+"\n")
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def open(self, file):
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"""Transparently deals with compressed files."""
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self.dir = os.path.dirname(os.path.abspath(file))
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try:
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gzip.open(file).readline()
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self.output = gzip.GzipFile("","wb",6,self.output)
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return gzip.open(file)
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except:
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return open(file)
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def lyxformat(self, format):
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result = format_re.match(format)
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if result:
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format = int(result.group(1) + result.group(2))
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else:
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self.error(str(format) + ": " + "Invalid LyX file.")
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if format in lst_ft:
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return format
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self.error(str(format) + ": " + "Format not supported.")
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return None
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def read_version(self):
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for line in self.header:
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if line[0] != "#":
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return None
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result = original_version.match(line)
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if result:
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return result.group(1)
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return None
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def set_version(self):
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self.header[0] = "#LyX %s created this file. For more info see http://www.lyx.org/" % version
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if self.header[1][0] == '#':
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del self.header[1]
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def read_format(self):
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for line in self.header:
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result = fileformat.match(line)
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if result:
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return self.lyxformat(result.group(1))
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else:
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self.error("Invalid LyX File.")
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return None
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def set_format(self):
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if int(self.format) <= 217:
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format = str(float(format)/100)
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else:
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format = self.format
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i = find_token(self.header, "\\lyxformat", 0)
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self.header[i] = "\\lyxformat %s" % format
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def chain(self):
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""" This is where all the decisions related with the convertion are taken"""
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self.start = self.format
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format = self.format
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correct_version = 0
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for rel in format_relation:
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if self.initial_version in rel[2]:
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if format in rel[1]:
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initial_step = rel[0]
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correct_version = 1
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break
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if not correct_version:
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if format <= 215:
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self.warning("Version does not match file format, discarding it.")
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for rel in format_relation:
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if format in rel[1]:
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initial_step = rel[0]
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break
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else:
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# This should not happen, really.
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self.error("Format not supported.")
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# Find the final step
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for rel in format_relation:
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if self.end_format in rel[1]:
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final_step = rel[0]
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break
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else:
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self.error("Format not supported.")
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# Convertion mode, back or forth
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steps = []
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if (initial_step, self.start) < (final_step, self.end_format):
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mode = "convert"
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first_step = 1
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for step in format_relation:
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if initial_step <= step[0] <= final_step:
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if first_step and len(step[1]) == 1:
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first_step = 0
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continue
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steps.append(step[0])
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else:
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mode = "revert"
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relation_format = format_relation
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relation_format.reverse()
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last_step = None
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for step in relation_format:
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if final_step <= step[0] <= initial_step:
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steps.append(step[0])
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last_step = step
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if last_step[1][-1] == self.end_format:
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steps.pop()
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return mode, steps
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